Thanks, sokoloff, this is helpful. Our only debt is the mortgage and the last few bits of student loans (gone by 2020), and our other large expense is daycare for our 2 year old. Pretty dialed in otherwise to maximize investing funds. We will be having another child in the near future, but should only have 1 year of day care crossover and both will be in public school by 2025.
We will be looking to lower our housing costs as part of the 2025 FIRE plan by either selling the house or renting it out. Lots of possibilities here with an international move to a lower cost of living destination like, say Costa Rica, for several years not being out of the question. International private school costs becomes part of the equation here, though. Perhaps just a move to lower housing cost place in the US that still allows us to have many of the things we enjoy about SoCal.
Other factor is the wife has a pension on top of our 401k, obviously that amount is dependent on how much longer she actually works.